The Dreamcast is the final home video game console manufactured by Sega. It was released in Japan on November 27, 1998, in North America on September 9, 1999, in Europe on October 14, 1999 and in Australia on November 30, 1999. From Wikipedia
The 1999 Sega Dreamcast classic is celebrated for its pioneering open-world design, though the poll's methodology has raised questions.